Abstract: A method and tray assembly is provided for heating, in a conventional household oven, batter-coated and par-fried frozen comestibles conveniently supported or held in a substantially vertical position. Vertical orientation is such that a three-dimensional comestible having a length, width or circumference and thickness is situated so that a plane of thickness is parallel to the bottom of the tray. The novel tray assembly maximizes convective or microwave heating of the comestible products, minimizes conductive heat transfer, and also permits the user to minimize the surface area of the comestible available for moisture collection during heating. The tray assembly comprises: a tray having upstanding support elements which fixedly engage the comestible in a substantially vertical position, a means to allow heated air to convectively heat the food products, and a means serving to collect oil and liquids released by the products during heating.